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| author | Takashi Iwai <tiwai@suse.de> | 2010-12-13 11:29:52 +0300 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2010-12-13 11:29:52 +0300 |
| commit | 354d14b3f53cc749c5d26d4ba7280d1e931d6bc4 (patch) | |
| tree | 59b597e44902d8db8bde7deac1e7e707327c6fe6 /fs/ioprio.c | |
| parent | 5144c534d16529bc469396211131e8935589f833 (diff) | |
| parent | 5b84ba26a9672e615897234fa5efd3eea2d6b295 (diff) | |
| download | linux-354d14b3f53cc749c5d26d4ba7280d1e931d6bc4.tar.xz | |
Merge branch 'topic/workq-update' into topic/misc
Diffstat (limited to 'fs/ioprio.c')
| -rw-r--r-- | fs/ioprio.c | 13 |
1 files changed, 4 insertions, 9 deletions
diff --git a/fs/ioprio.c b/fs/ioprio.c index 748cfb92dcc6..7da2a06508e5 100644 --- a/fs/ioprio.c +++ b/fs/ioprio.c @@ -103,12 +103,7 @@ SYSCALL_DEFINE3(ioprio_set, int, which, int, who, int, ioprio) } ret = -ESRCH; - /* - * We want IOPRIO_WHO_PGRP/IOPRIO_WHO_USER to be "atomic", - * so we can't use rcu_read_lock(). See re-copy of ->ioprio - * in copy_process(). - */ - read_lock(&tasklist_lock); + rcu_read_lock(); switch (which) { case IOPRIO_WHO_PROCESS: if (!who) @@ -153,7 +148,7 @@ free_uid: ret = -EINVAL; } - read_unlock(&tasklist_lock); + rcu_read_unlock(); return ret; } @@ -197,7 +192,7 @@ SYSCALL_DEFINE2(ioprio_get, int, which, int, who) int ret = -ESRCH; int tmpio; - read_lock(&tasklist_lock); + rcu_read_lock(); switch (which) { case IOPRIO_WHO_PROCESS: if (!who) @@ -250,6 +245,6 @@ SYSCALL_DEFINE2(ioprio_get, int, which, int, who) ret = -EINVAL; } - read_unlock(&tasklist_lock); + rcu_read_unlock(); return ret; } |